tree 19c49bb42fdce1dcb2d93119133070d37c715a68
parent b1b8eb991122479f47f3b4bac34db5b1b567f307
author Chih-Hung Hsieh <chh@google.com> 1603743411 -0700
committer Chih-Hung Hsieh <chh@google.com> 1603743411 -0700

Upgrade rust/crates/structopt to 0.3.20

Test: make
Change-Id: I50a53b96c652aea7c84a572a87578cf3828c00e2